/Engine/Source/Runtime/GeometryCore/Public/DynamicMesh/DynamicMeshTriangleAttribute.h
Update the overlay to reflect a face poke in the parent mesh
virtual void OnPokeTriangle ( const [DynamicMeshInfo::FPokeTriangleInfo](API\Runtime\GeometryCore\DynamicMesh\FPokeTriangleInfo) & PokeInfo )